Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| ? | 8 | 11 |
| 7 | 6 | 5 |
| 48 | 63 | 72 |
Option 1: 7
Option 2: 5
Option 3: 6
Option 4: 4
Correct Answer: 5
Solution :
The pattern is observed in a vertical direction along the columns.
Second column:
(8 + 1) × (6 + 1) = 9 × 7 = 63
Third column:
(11 + 1) × (5 + 1) = 12 × 6 = 72
Similarly,
First column:
Let the missing number be a.
⇒ (a + 1) × (7 + 1) = 48
⇒ (a + 1) × 8 = 48
⇒ (a + 1) = 48 ÷ 8
⇒ (a + 1) = 6
⇒ a = 6 – 1
⇒ a = 5
So, 5 is the missing number. Hence, the second option is correct.
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